Change functions for default branch from remote, and fix flags.

bin/functions.sh

@@ -4,21 +4,21 @@ set -e
 
 # Default values of arguments
 # https://stackoverflow.com/a/44750379/558561 -- get the default git branch name
-DEFAULT_BRANCH=$(git symbolic-ref refs/remotes/origin/HEAD | sed 's@^refs/remotes/origin/@@')
+DEFAULT_BRANCH=$(git remote show $(git remote) | sed -n '/HEAD branch/s/.*: //p')
 TEST_VERSION="7.4"
 OTHER_ARGUMENTS=()
 
 # Loop through arguments and process them
 # @ref https://pretzelhands.com/posts/command-line-flags/
 for arg in "$@"; do
   case $arg in
-  --default-branch)
-    DEFAULT_BRANCH="$2"
-    shift 2 # Remove name and value
+  --default-branch=*)
+    DEFAULT_BRANCH="${arg#*=}"
+    shift # Remove --default-branch= from processing
     ;;
-  --test-version)
-    TEST_VERSION="$2"
-    shift 2 # Remove name and value
+  --test-version=*)
+    TEST_VERSION="${arg#*=}"
+    shift # Remove --test-version= from processing
     ;;
   *)
     OTHER_ARGUMENTS+=("$1")

tests/unit/Plugin/PluginTest.php

@@ -53,6 +53,6 @@ public function testPlugin(): void
         $this->assertArrayHasKey(ContainerAwareTrait::class, $traits);
         $constants = $this->getClassConstants($this->reflection);
         $this->assertCount(1, $constants);
-        $this->assertArrayHasKey($this->plugin::TAG, $constants);
+        $this->assertArrayHasKey('TAG', $constants);
     }
 }